1. INTERNATIONAL NETWORKS At Indiana University 1 NetSage: An Open, Privacy-Aware, Network Measurement, Analysis, and Visualization Service GLIF 2015, Prague Andrew Lee leea@indiana.edu 1

2. INTERNATIONAL NETWORKS At Indiana University 2 Open, privacy-aware, network measurement, analysis, and visualization service Designed to address the needs of today’s international networks Joint project with UC Davis, ESnet and U. Hawaiʻi Active and passive measurements over IRNC Backbones and Exchange Points Focus on privacy issues Longitudinal network data visualization services

3. INTERNATIONAL NETWORKS At Indiana University 3 3 NetSage use cases 1.Current traffic patterns across IRNC links, and the ability to anticipate growth trends for capacity-planning purposes; 2.The main sources and sinks of large, elephant flows to know where to focus outreach and training opportunities; and 3.Where packet loss is occurring, whether the cause is congestion or other issues, and what impact it has on end-to-end performance. 3

4. INTERNATIONAL NETWORKS At Indiana University 4 Privacy Privacy is a top concern for many people Our plan is that we do not store any PII to long term storage ever Data collected that potentially has PII in it will be collected as close to the source as possible (such as a server directly attached to the router it is receiving it from) Data will be anonymized, aggregated and/or meta- tagged as appropriate before it is sent back to the central store over an encrypted connection We are forming a privacy committee consisting of people who are not directly part of the grant to advise us on privacy issues 4

5. INTERNATIONAL NETWORKS At Indiana University 5 Data we’re collecting Active measurements using PerfSONAR Throughput, loss, latency, and traceroute data Passive measurements SNMP and (later) NetFlow/sFlow data (Later-er) More in-depth flow analysis including TCP retransmit analysis from Bro Also hope to integrate alarm data from the IRNC NOC Data Anonymized to meet privacy concerns 5

6. INTERNATIONAL NETWORKS At Indiana University 6 Questions/Comments? Take aways: Privacy Utility Cool looking Group Website: http://internationalnetworking.indiana.edu/ Jennifer Schopf – jmschopf@indiana.edu Andrew Lee – leea@indiana.edu 6